Pith Number

pith:CKYHKHTY

pith:2026:CKYHKHTYY3FXCEX37FX4MXAA7U

not attested not anchored not stored refs pending

On Deranged Unit-Interval Parking Functions and the Deranged Bell Numbers

Yahia Djemmada

arxiv:2607.01273 v1 · 2026-06-30 · math.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CKYHKHTYY3FXCEX37FX4MXAA7U}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-03T00:16:55.996458Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

12b0751e78c6cb7112fbf96fc65c00fd027ba2152cfa47b1c13d029b491fe99b

Aliases

arxiv: 2607.01273 · arxiv_version: 2607.01273v1 · doi: 10.48550/arxiv.2607.01273 · pith_short_12: CKYHKHTYY3FX · pith_short_16: CKYHKHTYY3FXCEX3 · pith_short_8: CKYHKHTY

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/CKYHKHTYY3FXCEX37FX4MXAA7U \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 12b0751e78c6cb7112fbf96fc65c00fd027ba2152cfa47b1c13d029b491fe99b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5d8ad25f37bbc1b153615a0f9046e3e43e5e19d0f9903dce4eb0d8646f652912",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2026-06-30T21:17:45Z",
    "title_canon_sha256": "7f1e44bec24b3b794e0c897ad81f1437431ef499ca76143b3c0d409828427483"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.01273",
    "kind": "arxiv",
    "version": 1
  }
}